Home / 205,829.30-308,766.64-65,555.66

Finding the Fourth Proportional to 205,829.30, 308,766.64 and 65,555.66

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Solution

The fourth proportional to 205,829.30, 308,766.64 and 65,555.66 is: 98,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,829.30 : 308,766.64 = 65,555.66 : x
  2. Step 2: Convert to fraction form
    205,829.30/308,766.64 = 65,555.66/x
  3. Step 3: Cross multiply
    205,829.30x = 308,766.64 × 65,555.66
  4. Step 4: Simplify right side
    205,829.30x = 20,241,400,871.18
  5. Step 5: Solve for x
    x = 20,241,400,871.18/205,829.30
  6. Step 6: Final answer
    x = 98,340.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.